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Vifa BC25TG15-04 1" Silk Dome Tweeter

Brand:| Model: BC25TG15-04
Overview
Designed in Denmark by Vifa's experienced team of engineers, the BC25SG15-04 1" dome tweeter can meet the most demanding requirements for audio excellence.
Highlights
  • Sculpted, recessed-loaded round 4-hole faceplate
  • Smooth, extended response and high efficiency
  • 1" textile dome
  • Ferrofluid cooled voice coil
Part # 
264-1040
Weight: 1.2 lbs.  
IN STOCK
List Price$24.99
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Part # 264-1040
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Product Details

Vifa BC25TG15-04 1" Silk Dome Tweeter

Designed in Denmark by Vifa's experienced team of engineers, the BC25TG15-04 1" dome tweeter can meet the most demanding requirements for audio excellence. The tweeter features a textile diaphragm, high-energy ceramic ferrite magnet, and sculpted plastic faceplate. Ferrofluid in the magnetic gap improves driver cooling.



Product Specifications
  • Tweeter TypeSoft Dome
  • Cone / Dome Diameter1"
  • Impedance4 ohms
  • Power Handling (RMS)50 Watts
  • Frequency Response1,130 to 20,000 Hz
  • Sensitivity94 dB 1W/1m
Thiele-Small Parameters
  • Resonant Frequency (Fs)1,130 Hz
  • DC Resistance (Re)3.10 ohms
  • Mechanical Q (Qms)1.59
  • Electromagnetic Q (Qes)1.06
  • Total Q (Qts)0.64
Mounting Information
  • Overall Outside Diameter4.13"
  • Cutout Diameter3.00"
  • Depth1.25"
Vifa BC25TG15-04 1" Silk Dome Tweeter
  • BrandVifa
  • ModelBC25TG15-04
  • Part Number264-1040
  • UPC844632083815
  • Product CategoryTweeters
  • Unit of MeasureEA
  • Product Rating
    (8 Reviews)
  • Weight1.2 lbs.
  • California Prop 65

    Warning: California residents only. Please note per Proposition 65 that this product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

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Reviews

Vifa BC25TG15-04 1" Silk Dome Tweeter
Vifa BC25TG15-04 1" Silk Dome Tweeter is rated 4.75 out of 5 by 8.
Rated 5 out of 5 by from Excellent purchasePerforms to specs and fitted right in. Good quality, fair pricing and efficient shipping.
Date published: 2014-10-01
Rated 5 out of 5 by from Good ReplacementThis was the best fit to replace blown tweeters in a pair of vintage Cantons in terms of impedance, high frequency extension, and face plate dimensions. A little sweeter than the titanium domes they replaced, but a nice match for the CT 1000s used in a 7.1 surround system.
Date published: 2014-06-17
Rated 5 out of 5 by from What a tweeter!I bought this tweeter to pair with an Eminence Beta 12 LTA in a tower cabinet (Hammer Super 12), after finding out that they use this in the Tekton Mini Lore and OrielTen speakers. Now I know why, incredible resolution and detail, but smooth, never harsh. Very efficient too, partners well with high efficiency woofers. This is the best tweeter I have ever heard.
Date published: 2014-06-04
Rated 5 out of 5 by from Great TweeterPaired with Goldwood GW-S650/4 6-1/2" Poly Cone Woofer in my Yukon. Best detail in the upper end I've ever heard in a car. Buy them if you can make them fit.
Date published: 2013-10-19
Rated 5 out of 5 by from my silk dome tweetersI'M REALLY GLAD WITH PARTS EXPRESS, IT'S TO EASY FIND THE PRODUCT THAT WE NEED TO REPLACE IN EXELENT CONDITION VERY GOOD PROTECTED IN THEIR PACKAGE, WORKING WITH A HIGH QUALITY AFTER REPLACE; BECAUSE THEY HAVE THE RIGHT ONE, JUST ASK FOR, AND THEY SHOW YOU TWO OR THREE OPTIONAL PRODUCTS TO REPLACE, THEN WHEN YOU CHOOSE YOUR PAYMENT OPTION, YOU CAN DO IT REALLY QUICK AND SAFTY AND THE DELIVERY ALWAYS ON TIME.-THATS WHY I'M A HAPPY PARTS EXPRESS CUSTOMER.
Date published: 2013-02-28
Rated 5 out of 5 by from Makes the Hitmakers a hit!When combined with the DA175-8 in a project like The Hitmakers the BC25TG15-04 is certainly a best buy. They produce no harshness or anything else that would attract attention, only smiles. Really a bang-for-the-buck star when used right.
Date published: 2012-12-27

Product Q&A

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Vifa BC25TG15-04 1" Silk Dome Tweeter

what are the mounting hole dimensions on this tweeter

Asked by: atticghost
The mounting holes on this tweeter are on a 92mm (3.62") circle and are 4.2mm (0.165") in diameter.
Answered by: MattP
Date published: 2014-08-11

Can I connect this 4 ohm tweeter to a 8 ohm x-over with an 8 ohm woofer, and will the regular impedance be 8 ohms? I thought it would only raise the x-over point.

Asked by: leonveek
It will change the crossover point. The hardest load on the amp will still be 8 ohms but the higher frequencies will dip down to 4. This is generally not an issue since there is very little current draw at those frequencies.
Answered by: MattP
Date published: 2014-04-25

I am looking at combining this in a 2-way speaker with the Celestion Neodymium 5" Full-Range Woofer 4 Ohm, what would be a good crossover point for these? My original thought was ~ 6000, but I am new to this and want to make sure.

Asked by: AMMS
This combination will work with anything between 3-6kHz to be honest. I would probably shoot for a lower crossover since the Celestion has a bit of a break up around 7kHz.
Answered by: MattP
Date published: 2014-03-04

Replacement for Bose 301's Series II?

There are two tweeters in each speaker and I am assuming that they are 4 ohms each? Not sure how they are crossed over, there is not much of a crossover to speak of in the cabs but since these are rated down around 1130 Hz, they may make a good replacement. I also changed the woofers out to the Dayton Classic which made a big difference with much better lows that are not muddy like they were.
Asked by: CurtZ
There is a good chance the original tweeters were rated for 4 ohms however we have no way of knowing this for sure. Generally cone type tweeters like the originals are crossed around 3-5kHz which would be safe for this tweeter as long as it is second order. I would recommend a high pass filter for added protection.
Answered by: MattP
Date published: 2013-06-04

impedance compensation?

Is a 4 ohm resistor wired in series with this 4 ohm tweeter appropriate for use in an 8 ohm, two-way system? Does the resistor reduce the SPL from 94 dB to 90?
Asked by: Johnny Reno
Yes, you can use a 4 ohm resistor rated 10W in series with this tweeter to establish a net ~8 ohm load. Efficiency will drop by ~3dB as 50% of the energy delivered to the series load will turn to heat in the resistor.Keep in mind that your crossover will also be acting on the 8 ohm load of both devices in series - not just on the 4 ohm tweeter - so build for that.Also be aware that impedance increases somewhat above 9khz on this driver, so if you find output unpredictable above that you can install a 2.2 microfarad cap & 10 ohm resistor (series) in parallel with the tweeter-4 ohm resistor series. This should keep impedance fairly uniform. (google "zobel" for clarification)
Answered by: edegaston
Date published: 2013-08-30

is it ok to put a 4 ohm tweeter to my 6 ohm speaker

two 2.6 ohm woofers, one 5.2 midrange, blown tweeter doesnt say what ohms.. what is best? 4 ohm tweeter or 8 ohm tweeter?
Asked by: dio1978
Yes, just so long as the high-pass section of the crossover is constructed with a 4-ohm tweeter in mind. Alternatively, you could place a 2-ohm audio grade resistor in series with the tweeter, to bring its total impedance up to 6 ohms. This will have the effect of attenuating the output of the tweeter slightly... which is actually a good idea in most 2-way applications.
Answered by: Rasterburn
Date published: 2012-02-18

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